I wouldn't be particularly worried about this but he is staring school in September and his name begins with an 'R'. Am wondering if the other kids will take the p* or if it's totally normal at his age for 'r' words to sounds just like 'w' words. His speech generally is very good. Should we encourage him to practice saying 'r' instead of 'w' or would that just make an issue of it and make him self-conscious. Any thoughts anyone?